#joinClassContainer #headTitle {
    text-align: center;
    font-size: 45px;
    color: #63a1b2;
    margin: 25px auto;
}

#joinClassContainer #pagination {
    position: absolute;
    bottom: 1vh;
}

#joinClassContainer #table {
    border-radius: 5px;
    overflow: hidden;
    margin: 25px auto;
}

#joinClassContainer .etb {
    /*表格文字居中*/
    align-items: center;
}

#joinClassContainer .el-input {
    margin-right: 10px;
}